Improvement in lamp-extinguishers



e; MARTIN." LAMP-EXTINGUISHE'R;

Patented May 30, 1876.

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Nv PETERS, FKOTO-LITHOGRAFMER, WASHINGTON D C UNITED STATES GEORGE w.MARTIN, or oHELsEA, ASSIGNOR TO HIMSELF AND JOSEPH w- PATENT OFFICEHASKINS, or BOSTON, MASSACHUSETTS.

IMPROVEMENT IN. LAM P-EXTINGUISHERS.

Specification forming part'of Letters Patent No. 177,947. dated May-30,1876; application filed. March 28, 1876.

To all whom it may concern:

Be it known that I, GEORGE W. MARTIN, of Chelsea, in the county ofSuffolk and State of Massachusetts, have inventedcertain new and usefulImprovements in Lamp-Extin guishers; and I do hereby declare that thefollowing is a full, clear, and exact description thereof, which willenable others skilled in the art to which it pertains to make and usethe same,

' reference being had to the accompanying drawing, and to the letters ofreference marked thereon, which form apart of this specification. a

In such drawing, Figure l is a top view of the base portion of anordinary lamp-burner provided with my invention. Fig. 2 is acentral andvertical section taken transversely through the wick-tube. Fig. 3 is avertical section taken through the burner in rear of the wick-tube, thedark lines showing the sleeve in its lowest position, while the dottedlines show the sleeve as elevated into a position to extinguish theflame of the burner.

The main object of my invention is to produce a simple, cheap, andefi'ective device to be applied to the-wick-tube of alamp or burner forextinguishing the flame thereof-one which, under ordinary circumstances,can be readily operated, and which, in case of accidental upsetting ofthe lamp, will automatically extinguish the flame; and my inventionconsists in the peculiar construction and. ar-

rangement of the parts, as will be hereinafter described and claimed.

In the drawing, A denotes the base or lower portion of a lamp-burner ofthe ordinary construction; B, the wick'tube extending up through thesame; 0, is a sleeve which envelops the sides of the wick-tube, itslowersurface of the diaphragm 0.. Within the inner wall of the sleeve Iform a vertical passage, 0, having. an area in cross-sectioncorresponding with that of the tubeb, such passage being so arranged asto form a continuation thereof, and thereby serving to conduct any gasgenerated in the reservoir of the lamp up to the flame or top of thewick-tube. This sleeve I prefer to make of two blanks or plates,,

(1 d, of the form as shown in Figs. 4 and 5, the inner one, (1, having aportion cut out, which isto be bent out at a right angle to the plane ofits outer surface to constitute an ear, 0, which is perforated toreceive theinner end of an actuating-lever, f, the adjacent or abuttingedges of the outer portion of the slider, and being supported inposition thereby. The part at, it will be seen, is of a less length thanthe part cl, andis bent around so that its ends constitute the sidewalls of the passage 0, while the part 01 is bent around so as to breakjoints therewith, the two parts being pressed together into shape, andthereby require no soldering.

1 would remark that'the sleeve, if desirable,

may be made of a single piece, and the per-' forated ear 6 be solderedthereto, and the pas sage c stamped or filed out; but I prefer thefirst-mentioned mode of construction.

The actuatinglever f extends through the rim of the part A, which servesas a fulcrum, the said lever being bent, and having the form as shown inFigs. 1 and 3. The inner end of the lever f extends through theperforated ear 0, and has its' extremity bent up or formed with a knobor stop, so as to limit the movement of the sleeve'when it has reachedthe desired altitude, and thus prevent it from becoming detached fromthe wick-tube. g is a curved lip, which extends over the, lever f nearthe rim, which, although not essential, may be used to prevent anytendency of the lever to move out of its proper path ot'motion.

From the above it will be seen that, in operating the sleeve orextinguisher, while provision is made for moving the same both up anddown on the wick-tube, it will, under all ordinary circumstances, whenraised, fall by its own gravity, its elevation being effect ed by simplypressing. the thumb or finger down upon the pater end of the lever f. In

, with the perforated ear 9, formed integral with the plate d, the wholebeing constructed and arranged as shown and described.

3. The combinatioxrof the gas-escape t-ube I) (located in the base 20fathe burner, as described)and the sleeve, formed with the gaspassage c,and the perforated ear 0, with the lever f, the whole being constructedand arm ranged as'shown and described.

In testimony that I claim the foregoing as :myown invention Iaffi-xemysignature in presence of two witnesses.

GEO. W. MARTIN.

Witnesses:

' F. P. HALE,

